Picker-check for looms.



w@ H. PIERCE M". ASPIN.' PICKER' GHBGK Pon LooMs APPLIQATIO'N FILEDMAY'li. 1991.

910,572. 4 Patented Jan.g6,19o9

Unirse sriirns PATENT, onirica.'

p WILLIAM HENRY PIERCE AND FRED AsriN, or Acciiiiie'rou,f ENGLAND.

PioicsR-cnncxjron Looms'.

To all whom 'ii may concern.'

-Be itknown that we, WILLIAM HENRY Pinnen and FRED AsPiN, residing at 60Vivillowsflgane, Accrington, in the county of Lancaster, England, and109 Viillows Lane aforesaid, respectively, have linventedV certainnew-and useful'Improvements in Picker- Checls for Looms, .and We dohereby declare the following tobe a full, clear, and exact 10description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates looms for Weaving.

Itis usual to employ, at the present time,

.for thepurpose of arresting the movement of so adjusted, that vthebui'lier, although ncr-l mally occupying a position upon the pickerspindle close to tlie'stud on the end thereof,

is not actually in contact with such stud, and on the picker strikingthe. buii'er the said strap is conseqiliently placed in tension andabsorbs the Ashock caused by the impact of the picker against thebuffer.

A butler and check strap, as above described, f or arresting themovement of the picker, are not cnly expensive initially but rapidlydeteriorate and require fre uent renewal. oreover, as would natural y beexpected, .it is found that the continual strain to which. the checkstrap is subjected causes it to become permanently stretched or eX-tended, and unless this is observed and remedied in due time the saidcheck strap ceases to perform its function, as the butler takes up aposition against the sti-'d on the end of the picker spindle andreceives the whole force of the blow of the picker. As a result of thisthe stud is driven ofi the endr of the picker spindle and damage done tothe piece.

The object of this invention is to overcome the ilisailvaiitagesattending the use of a buffer and check strap as above described byproviding a biii'i'er which shall, essentially, be sufficiently elasticto absorb, alone or un- Specificatio of Letters Patent. l Applicationfiled May 11, 1907.' Serial No. 373,082.

to picker checks of Patented Jan. as. 1909.

aided, the shock caused by the blow of the picker, and at the same timesufficiently durable to withstand the repeated blows of the picker, andthis we find we are able to accomplish by employing, to composeafbuffcr, a fibrous, semi-fibrous, or kindred material orsubstance,orlinaterials or substances, combined with vindia-rubber, or its'euivalent. The material or substance com 'ined with the indiarubber orits equivalent is preferably of a distinctly fibrous nature and ispreferably used in the form which cotton sheeting, canvas, linen, and

mamie cloth may be cited as examples, but

not necessarily so, and as alternatives may be mentioned cotton yarn,flax, hemp, woodpulp,

aper and cork. Suc

of a fabric, ofl

being thenatuie and objectof our v said invention we will describe withreferencev to the accompanying drawings an embodinient of the inventionand mode of constructing the particular form of buer illustrated.

In the drawings Figure 1v is an end view of the form of icker buffer wehave found in practice to give the best results; F' 2 is a sider viewthereof; Fig. 3 shows the uffe'r in position upon a picker spindle; andFigs. t and 5 are views, corresponding to'Figs. 1 and 2, of a cap whichWe usually find it advantageous to employ in conjunction with thebuffer. A v

In constructin buffersv of this preferred form We take. re erably acotton sheetinfguof suitable lengt and Width and in the st place to oneside of this we ap ly a thin layer or coating of india-rubber in aliquid or semi-liquid condition The said cotton sheeting is then passedthrough heavy rollers after which another layer or coatin of lindia-rubber may be applied and the c oth again squeezed between heavyrollers and so on as often as may be reuired, the squeezing having theeffect of orcing the india-rubber into, through, the cloth. The oppositeside of the cloth is then treated in like manner. The said cloth is thenwound or Wrapped around a mandrel into the form of a tube, asillustrated in Fig. 1, the said tube being thus composed of alternatelayers' of indiarubber and cloth. .The tube is thenvulcanized and cutinto short lengths to form the buffers a, as illustrated in Figs. 2 and`-3. To prevent the buffers being impaired or destroyed by the oil inwhich the pickers are but preferably not stee ed, or by the acids vinthe oil, they are pre' erablycoated at the ends and otherwiseexternally'with celluloid or other materiall i. having like properties,or if desired they may be im regnated therewith.

icker 'lhe'bu er dis placed upon the the spindle :c so ythat it is incontact Wit :stud d,as sh'oWn'in Fig. 3, and the bore or i"internalrdiam'eter a1 vof the buffer a is made slightly less than thediameter of the spindle en which itlts so that the buffer irmly Igripsthe spindle andis held securely in itsV lace Lihereon. vA cap ordisk b, of raw hide,

` eather, .compressed felt, or other suitable material,v provided with aIcentral hole b1, is 'referab'ly employed in conjunction with the uferto receive the blow of the picker, the said c a b' being placed upon thepicker s'pindle in the position shown in Fig. 3.

Ihe spindle c is supported in the loom in any apiprov d-manner, and thelstud or abutment is rigidly secured to its free end portion. lhe edgesof the la ers ofinaterial at one end of the buiier a ear against thev:abutment d, and the ca thepicker strikes the cap b t e force of the'blow is distributed over 'the edges ci 4the layers of textile materialand india rubber,

so that very little shock is transmitted to f ment.

the abutment d. .v

In carrying out this invention any compound having the elastic proerties of india rubber may. be used as tie mechanical i equivalent of.india rubber.

We Would'have it understood that While -We refer to construct a bufferof lthe particu ai' shape described andillustrated, and

of the materials and in the manner specified with regard to the buffershown in the drawin s, as we believe that by so doing We obtam the bestresults, We do not. bind ourselves to this particular shape,composition,

.provided with an abutment, of a resilient picker bull'er formed ofagglomerate layers of'textile material and india rubber, said saidabutment so as to receive the blow of the picker upon their ends remotefrom the said abutment.

2.l The combination, with a picker-spindle provided with an abutment, ofa' resilient picker buer formed of ag of textile material an indiarubber, said layers being secured .endwise against. the said abutment soas to receive the blow of the picker upon their ends renwtc frinny thesaid abutment, and a protective ca covering the ends of the said layerswnere the icker strikes to distribute the force of its 10W. f

3. The combination, with a supporting spindle provided with an abutment,of a tubular picker bufler formed of a-sejries of coils of textilematerial and india rubber enlaYers beinff' secured endwise against the oC D clomerate layes i circling the said spindle and arranged endl Wiseagainst the said abutment so as to reiceive the blow' of the picker u onthe ends of the said coils remote from t e said abutl In testimonywhereof We aflix our signatures, in presence of two Witnesses. p

WILLIAM HENRY PIERCE. FRED ASPIN. Witnesses:

GEO. W. PICKUP, R. T. HAYHURST.

